281330270

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{69809}}^1$

素因数の和:69860

約数の個数: 32

約数和(自身を含む): 562947840

約数和(自身を除く): 281617570

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 69809, 139618, 349045, 698090, 907517, 1815034, 2164079, 4328158, 4537585, 9075170, 10820395, 21640790, 28133027, 56266054, 140665135, 281330270]

約数ペア:

[(1, 281330270), (2, 140665135), (5, 56266054), (10, 28133027), (13, 21640790), (26, 10820395), (31, 9075170), (62, 4537585), (65, 4328158), (130, 2164079), (155, 1815034), (310, 907517), (403, 698090), (806, 349045), (2015, 139618), (4030, 69809)]